Now you have 5 histograms for each image.

现在你有5个柱状图为每个图像。

Overall distribution histograms are alsoavailable.

总体分布直方图也可以得到。

Histograms, Percentiles, Mean, Median, Variance, etc.

质方图，百分位数，平均，中位数，变异…等。

Histograms are used to calculate the selectivity of the predicates.

直方图用于计算谓词的选择率。

Conditional frequencies are perhaps more interesting than plain histograms.

条件频率分布可能比普通的直方图更有趣。